Louvered ventilator



Oct. 11, 1960 w. B. WALKER ETAL 2,955,526

LOUVERED VENTILATOR Filed May 20, 1959 N 5 s flmwm Twmw NMAHO w Jfin mm mm WNK United StatesPatent ce LOUVERED VENTILATOR Walter B. Walker, Grosse lle, and Norman J. Jaskowski, Dearborn, Mich., assignors to Walcon Corporation,

Ecorse, Mich.

Filed May 20, 1959, Ser. No. 814,455

Claims. (Cl. 98-121) The present invention. relates to improvements in a louvered ventilator construction.

Louvered ventilators are generally used to provide ventilation through a portion ofva building. Many times they are used to surround the penthouse in which an air conditioning unit is housed. Their purpose is to provide adequate air flow while keeping out rain, snow and the like.

Many types of louvered ventilators have been proposed, but are objectionable because of the storage space required and their excessive cost.

It is a principal object of the present invention to provide a louvered ventilator which is simple in construction and economical to manufacture.

It is a further object of the present invention to provide a louvered ventilator which requires only a small storage space and one which can be shipped in a knockdown condition and assembled with ease at the work site.

It is another object of the present invention to provide a louvered ventilator which is versatile in use and attractive in appearance.

Other objects of this invention will appear in the following description and and appended claims, reference being had to the accompanying drawings forming a part of this specification wherein like reference characters designate corresponding parts in the several views.

In the drawings:

Fig. 1 is a front elevation of a louvered ventilator embodying the features of the present invention.

Fig. 2 is a fragmentary section taken along the line 2-2 in the direction of the arrows, Fig. 1.

Fig. 3 is afragmentary section taken along the line 3-3 in the direction of the arrows, Fig. 1.

Fig. 4 is a sectional view taken along the line 44 in the direction of the arrows, Fig. 1.

Fig. 5 is an exploded view of the portion embodied in the circle indicated in Fig. 1.

Before explaining the present invention in detail, it is ,to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.

The louvered ventilator of the present invention embodies a head member 10, a sill member 12, two side members 14 and 16, and a plurality of louvers 18. There are actually three pieces for manufacture since the two side members are identical; the head and the sill are identical; and all the louvers are identical. Therefore, the device is very economical to manufacture.

The pieces are shipped in the knock-down condition. There are four holes in the head, four holes in the sill, and four holes in each side member, and sheet metal screws are used to assemble the construction. One set 2,955,526 Patented Oct. 11, 1960 of holes is shown at 20 and 22 in Fig. 5. The manner in which these holes match for assembly is obvious. Since there will be two sheet metal screws used at each corner, a total of eight sheet metal screws is involved.

The two side pieces 14 and 16 are made from substantially flat material and formed into identical shapes.

Therefore, only one side piece will be described in detail. The side piece 14 includes a centrally located flat portion 24. One end of the flat portion is bent back upon itself and then in a second bend formed into a U-shaped guide channel 26. A third bend at right angles thereto forms the face flange 28. The guide channel 26 has a flat outer surface 29 in substantially parallel relationship to the flat portion 24. The other end of the flat portion 24 is angled obliquely out and then bent a second time to form a flat section 30 which lies in substantially parallel relationship with surface 29. The end thereof is then bent at substantially right angles to form back flange 32. The surfaces 29 and 30 are in flush alignment. The side member 16 is formed in the same manner.

The louvers 18 are all identical, so only one louver construction will be discussed. The cross section of each louver is of generally Z shape with the parallel sections 40 and 41 of said cross section very short. Each end of the louver has a turned up triangular side portion 34. The free end of each side portion 34 is bent back to provide a seating flange 36 which is adapted to slide in guide channel 26 of the adjacent side member. A tab 38 is provided on the top of the triangular side portion 34 and extends inwardly therefrom. A positioning flange 40 is provided at the bottom of the louver and extends backwardly therefrom.

At the back and top of the louver is provided a forwardly extending locating flange 41.

The head member 10 and sill member 12 are identical, and the same numbers are applied to their respective parts. Each member includes a straight framing flange 42 at one end. At the other end an L-shaped seating pocket 44 is provided. Sections 42 and 44 being in substantially parallel relationship.

Assembly The various pieces are shipped in a disassembled condition to conserve space and save freight charges. When the components reach the assembly site, the side members 14 and 16 are 'aflixed to the sill member 12 with sheet metal screws. This provides a substantially U- shaped frame which is open at the top. I

Next the first louver 18 is placed with its seating flanges 36 in the guide channels 26 of the side members 14 and 16. The louv'er is slid down to the sill member 12 where the positioning flange 40 is positioned in the L-shaped seating pocket 44 of the sill member 12 (Fig. 3). The second louver is then inserted in the same manner and is slid down until its positioning flange 40 rests upon the tabs 38 of the first louver. Additional louvers are slid into position, and then the head member 10 is affixed at the top. The positioning flange 40 of the top louver is positioned in the L-shaped pocket 44 of the head mem ber 10, and then the head member 10 is affixed to the side members 14 and 16 with sheet metal screws through holes such as 20 and 22;

The result is a louvered ventilator which is securely assembled in sturdy fashion to withstand rough handling.

The construction of the present invention eliminates costly spot welding of the louvers to the frame with the use of special fixtures.

By altering the length of the framing flanges 42 and the position of the L-shaped pocket 44 on the head and sill members, diflerent appearances can be obtained. Also the length of the side members can be varied to provide ventilators utilizing different numbers of louvers.

The edge 30 and the outer side 29 of the guide channel 26 on each side member 14 and 16 extends sidewise approximately the same distance so as to provide a louver which will fit flush against the adjacent building structure.

Having thus described our invention, we claim:

1. A knock down'louvered ventilator comprising, a head and sill member, each having a deformed angular section forming a seating means on one edge thereof; a pair of vertically disposed generally U-shaped side members, the lower ends of which are adapted to be aflixed to said sill member; said side members each having a vertical guide portion thereon, said guide portions located in generally parallel relationship to the flat body thereof; a plurality of louver members; the ends of said louvers slidably disposed in said guide portions; means on said louvers for limiting displacement of said louvers in stacked relationship; the ends of said head member adapted to be secured to said side members, the edges of the topmost stacked louver engaging the seating means adjacent thereto.

2. A knock down louver ventilator, comprising a head and sill member, each having a deformed rectangular seating pocket therein; a pair of side members, the lower ends of which are adapted to be affixed to said sill member; said side members each having a vertical guide portion thereon, the guide portion located in generally parallel relationship to the body thereof; a plurality of louvers, the ends thereof each having a pair of seating flanges adapted to fit into and slide along the vertical guide portions on the side members; a positioning flange at the bottom of each of said louvers; a locating flange at the top rear of each of said louvers; triangular shaped upturned end portions on said louvers; a pair of tabs on each end thereof located at the top and front of each louver; said head member secured to said side member and adapted to seat the locating flange of the topmost louver; the locating flange on the bottom louver being seated in the seating means of the sill member.

3. A knocked down louvered ventilator, comprising a head and sill member, each having a deformed rectangular seating pocket therein; a pair of side members, one end of each adapted to be afiixed to said sill member; guide portions in said side members extending the length thereof; a plurality of louvers each having a triangular end portion; the forward edge of said triangular end having a pair of flanges thereon adapted to fit into and slide along the guide portions in the side members; seating means on the top and bottom of each louver adapted to seat the louvers in stacked relationship; locating means.

on each louver; said head member adapted to be aflixed to said side members; the rectangular seating means in said head member adapted to seat the locating means on the topmost louver, while the locating means on the bottom louver is seated in the seating means provided in the sill member.

4. A knock down louvered ventilator, comprising a head and sill member of similar configuration, each having an angular seating pocket therein; a pair of vertical side members adapted to be aflixed to said sill member; a guide channel formed on each side member and extending the length thereof; the outside surface of each of said side members in flush alignment with the flat side of said guide channel; a plurality of louvers, each having end portions with flanges thereon, which flanges are adapted to fit into and slide along the guide channel portions; generally horizontal seating means at the top and bottom of each louver so as to permit seating of the louvers in stacked relationship; said head member adapted to be affixed to said side members, the angular seating means therein adapted to seat the positioning means on the topmost louver in the assembly, While the locating means on the bottom louver is adapted to be seated in the seating pocket formed on one edge of said sill member.

5. A knock down louvered ventilator, comprising a head and sill member, each of the same configuration; a seating pocket along one surface thereof and a framing flange along the opposite surface, each separated by a generally flat and horizontal body portion; a pair of vertically disposed side members, each of the same configuration; the forward portion of each side member is folded back upon itself and then bent into a U-shaped channel; the rear section of each side member is deformed outwardly and then into substantially flush relationship with the outer surface of the channel portion; front and rear flanges are formed on the side members adjacent said channel and said outwardly deformed section, said flanges extending at substantially right angles thereto; said side members adapted to be affixed to said sill member; a plurality of louvers, each having triangular end sections extending therefrom; the forward portion of each end thereof is folded outwardly and rearwardly upon itself in spaced relationship to the triangular endso as to form a flange which is adapted to slidably engage'the channel portions of said side members; an inwardly formed tab extending from each of said flanges on said triangular end members; a positioning flange extending rearwardly from the bottom front section of each louver; a locating flange at the rear top section ofeach louver; the locating flange on the lowermost louver engaging the seating pocket in the sill member, while the locating flange on each successive louver engages the tab members; the positioning flange on the topmost louver engages the seating pocket in the head member, the ends of the head member are secured to the side members to form a complete assembly.

References Cited in the file of this patent UNITED STATES PATENTS 2,216,420 Rose Oct. 1, 1940 2,752,844 Simblest July 3, 1956 2,835,00l Matthews May 20, 1958 

